Package binder



Aug. 23, 1966 YO SATO ETAL PACKAGE BINDER 5 Sheets-Sheet 1 Filed Jan.28. 1963 mmvrox L g '3 M Aug. 23, 1966 YO sATo ETAL 3,267,837

PACKAGE BINDER Filed Jan. 28, 1963 5 SheetsSheet 2 IN VEN TOR.

Aug. 23, 1966 YO SATO ETAL. 3,257,337

PACKAGE BINDER Filed Jan. 28, 1963 5 Sheets-Sheet 3 Flg.l7.

IN V EN TOR.

W 1 W" W Aug. 23, 1966 Yo sATO ETAL 3,267,837

PACKAGE BINDER I Filed Jan. 28, 1963 5 Sheets-Sheet 4.

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IN VEN TOR.

United States Patent "ice 3,267,837 PACKAGE BINDER Yo Sato, Tokyo, andKiyoji Nagasliima, Saitama-ken, Japan, assignors to Sato Kiko CompanyLimited, Chiyoda-ku, Tokyo, Japan, a company of Japan Filed Ian. 28,1963, Ser. No. 254,108 Claims priority, application Japan, Jan. 30,1962, 37/2,580 (utility model) 37/3,105; July 5, 1962 (utility model)37/27,638; Mar. 7, 1962 (utility model), 37/ 11,828

Claims. (Cl. 100-27) The present invention relates to a package binderand it is one object of the present invention to provide a packagebinder, wherein a string carrying arm is subjected to rotation to bindmaterial to be packaged.

With this and other objects in view, which will become apparent in thefollowing detailed description, the present invention will be clearlyunderstood in connection with the accompanying drawings, in which:

FIGURE 1 is a side elevation of the package binder;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevation of the package binder;

I FIG. 4 is a fragmentary perspective view of the change differentialgear device and a rear view of the string carrying rotating arm;

FIG. 5 is an axial section of the change differential gear device;

FIGS. 6 to 10 are schematic views indicating the relative location ofeach part of the change differential gear device at different positions;

FIG. 11 is a diagram depicting the angular velocity of the main drivingbevel gear in relation to the rotating angle;

FIG. 12 is a perspective front view of the string carrying arm;

FIG. 13 is a fragmentary perspective view of the free edge of the stringcarrying arm;

FIG. 14 is a side elevation of the string paying-out and dampingmechanism;

FIG. 15 is a front elevation of the mechanism disclosed in FIG. 14;

FIG. 16 is a perspective view thereof;

FIG. 17 is an axial section of the holding device; and

FIG. 18 is a perspective view of the grooved wheels.

Referring now to the drawings, and in particular to FIGS. 1 to 4, thepackage binder comprises a string carrying arm 5 (FIG. 1) which bindspackage material 7, and a motive power transmission to a bend formingmember 37 and includes a string stretching device which is fitted to thestring carrying arm 5, and a roller string payingout and damping device.

Concerning the condition of the package bound by the package binderheretofore used, the bound condition varies according to the variousshapes of package materials, or of the nature of the material and thethickness of the used string.

The package binder avoids the drawbacks of the known devices andcomprises a fixed table 1, which is secured to a front post 2 of theframe structure, the lower part of which is equipped with casters. Atraveling table 3 is provided, which is fixed to a bearing case having abearing 4 located in the upper part thereof. The string carrying arm 5,to which the traveling table 3 is mounted for free rotation and also oneend of the string carrying arm 5 is suspended upon the rear frame 6, soas to freely rotate relative to the frame 6. The fixed table 1 and thetraveling table 3 are spaced apart from each other and maintain ahorizontal position, so that package material 7 can be received on thesurface of the tables 1 and 3. A stationary member 8, disposed on thefixed table 1, serves the purpose of guiding the package material on thetable 1, and simultaneously, operates as an abutting memthereof.

3,267,837 Patented August 23, 1966 ber which supports the packagematerial while the package material is in the process of package bindingby means of a string 9. The latter is to be wound about the packagematerial 7 and is drawn upwardly from a cone 11 (FIG. 3) which is keptin a container 10 disposed adjacent to the package binder and severalspare cones 11' are disposed in the rear of the cone 11, so that acontinuous supply of the string '9 is available. The string 9 taken fromthe cone 11 is fed through a guide 12 fitted in the container 10 and asecond guide 13 fitted to the rear frame 6, in order to pass through thecenter bore 14 of a rotating shaft of the string carrying arm 5. Anopening 15 is provided in the string sustaining arm 5 and a groovedpulley 17 (FIG. 4) is provided on one side of the opening 15. Guiderollers 29 and 31 are provided at the end of a tension receiver andguide rollers 32 and 33 and a guide link 34 feed the string 9 into thestring retainer of a knot forming structure 37 (FIG. 4). Guide rollers35 and 36 (FIGS. 4, 12 and 13) are provided on the free end of thestring sustaining arm 5, where the string 9 is connected with the otherend of the wound string 9, and thereupon a knot may be formed.

A fitting plate 38 (FIGS. 4 and 12) is fixed to one side of the stringcarrying arm 5 and the plate 38 has a U- shaped slot receiving the rodcarrier 44) for free rotation A tension receiver 30 has the guide roller31 fitted to its end and its other end is fixed to a cage 41. On one endof a pin 42, fixed to the fitting plate 38, the cage 41 is set so thatit can rotate freely, while one end of a rod 43 is suspended on a pin44, so as to rotate. The rod carrier has a bore receiving the rod 43 forreciprocation, while a spring 45 is disposed on the rod 43 and anadjusting screw 46 is screwed onto the threaded part of the rod 43. Acontrol pin 47 (FIGS. 12, 16) is fastened to the cage 41 and the tensionreceiver 30, and it controls the tension receiver 30 not to be raisedhigher than required. A sustaining board 48 (FIGS. 4, 12) fixed to thestring carrying arm 5 supports the guide rollers 29 and 32, and anear-member 49 serves the control of the tension receiver 30 not to belowered more than required. When the tension receiver 30 is lowered onthe fulcrum of the pin 42, one end of the rod 43 is joined in thedirection of rotation, which causes the spring 45 to be compressed.

A retainer 19 (FIG. 4) is fastened to the lower part of the opening 15,and to one side of the retainer 19 is secured a small shaft 18 having abody of grooved pulleys 16, 17 to permit rotation thereof. The groovedpulley 17 is equipped with ratchet-teeth, as shown on the drawing (FIG.18) for the purpose of prevention of slipping of the string 9 and aninterlocking shaft 20 (FIGS. 4, 16) has both of its ends set in thefitting plate 38 and the retainer 19, permitting rotation and further,to one side of the interlocking shaft 20 an inverted cam 27 (FIG. 16) issecured, while to the other side of it a control retainer 21 (FIGS. 16,17) is secured, forming an appropriate state of the cam 27 on one sideof the cage 41 which is made to come into engagement with the invertedcam 27. Also to one side of the control retainer 21 a damper 22 (FIG.17) is set, so as to freely move from side to side, which contacts thegroove of the grooved pulley 16 and on the other side of the regulativeretainer 21 (FIGS. 14, 16, 17) an adjusting screw cylinder 24 with a nut25 and an adjusting screw 26 is received, where a spring 23 (FIG. 17) ishoused, so that the spring pressure may be adjusted easily.

The operating condition of this device with reference to FIGS. 16 and 17will now be explained. The string carrying arm 5 is placed such, that itcan be introduced into the guide roller 29 only after it has been coiledabout the resistance grooved pulley 17 for the purpose of providingresistance to the string 9. As the tension lever 30 rises on the fulcrumof the pin 42, the cam on one side of When the pedal 53 (FIG. 1) isoperated, the rotating shaft 57 performs one revolution. The pin 75rotates together with the bevel gear 68 fixed to one side of therotating shaft 57, while the member 72 reciprocates in the longitudinalslot 91, and causes oscillation of the oscillating rod 88 about theshaft 89 as the fulcrum. By means of the bevel gears 82 and 83, thebevel gear 66 and the sprocket 63 rotate in reverse direction to thedirection of rotation of the bevel gear 68. In this case, in connectionwith the oscillation of the oscillator 83 to both sides, the core of thepin 78 and the member 77 reciprocates in the longintudinal slot 91 alongan arc centering about the core of the shaft 57 as its locus, so thatthe position of the gear shafts 84, 79 varies at all times, whichchanges the velocity of the bevel gear 66, while the velocity of thebevel gear 68 is fixed and non-changeable.

Characteristics and efiects The present device has the followingcharacteristics as a package binder:

The rotating shaft 57 which transmits the rotation of the stringcarrying arm 5 of the package binder and motive power for the knotforming member is decelerated automatically by the change differentialbell gear device (FIG. 5) until it comes to a complete stop. The device,not forcing the string carrying arm 5 to rotate vigorously, eliminatesthe dilficulties in the operation and thus the package material can bebound with a higher efficiency than it was possible with the knowndevices.

By this device the equalized binding condition can be maintained, notinfluenced by the shape of the package material, by elongation of thestring, or by others, so that the package material can be bound far morefirmly by this device than with the known devices.

In binding package materials, no difficulties occur in paying-out of thestring irrespective of the strength of the tightening power of thestring, and the operator is not required to approach to the rear frame,as it was required before, for adjustment of the tightening power of thestring for the package material, rather not only is he able to do thework of adjustment easily without leaving his present working location,but also he can find out with case whether the cone 11 is secured ornot, or he can exchange cones and reserve cones 11' are ready andserviceable for his work, which in a small workshop, enables theoperator to carry out his work without wasting time nor causing anydifficulties.

The spare cone 11' is placed next to the cone 11 such, they may belinked with each other, so as soon as the string 9 is unwound, the sparecone 11 is shifted to the place of the cone 11 and a continuous bindingoperation is obtained, though heretofore the end of the string of theunwinding cone 1]. and the start of the new cone had to be connected.

While we have disclosed one embodiment of the present invention, it isto be understood that this embodiment is given by example only and notin a limiting sense, the scope of the present invention being determinedby the objects and the claims.

We claim:

1. A package binder comprising a frame,

a fixed table secured to said frame,

a traveling table disposed adjacent to but spaced apart from said fixedtable and movably secured to said frame,

a string carrying arm operatively connected with'said traveling tableand pivotally secured to said frame in order to permit rotation relativeto said frame,

a knot forming device operatively connected with said string carryingarm,

a main shaft and a second shaft operatively connected with said mainshaft,

means for operation of said string carrying arm from said main shaft,

said means for operation including a change differential gear deviceoperatively connected with and driven by said main shaft in order tocontrol the rotation of said string carrying arm from a slow start to amaximum speed and to terminate with a slow speed,

said change differential gear device comprising a first bevel gearmounted for relative rotation on said second shaft and adapted to drivesaid string carrying arm and a second bevel gear keyed to said secondshaft,

a pin carrier including third and fourth bevel gears pivotally mountedthereon the latter gears meshing with said first and second bevel gears,said pin carrier being supported for rotation on said second shaft, and

an oscillating rod having a longitudinal slot pivoted about a fittingframe and being adapted to receive two members independently oscillatingtherein, one of said members being connected for rotation with saidsecond bevel gear, ,while the other of said members being operativelyconnected with said fourth bevel gear to oscillate it about the secondshaft.

2. The package binder, as set forth in claim 1, which includes a tensionlever pivotally connected with one end of said string carrying arm, and

means for oscillating said tension lever relative to said stringcarrying arm,

3. The package binder, as set forth in claim 1, which includes a stringpaying-out member and means for damping the movement of said stringpayingout member.

4. The package binder, as set forth in claim 1, which includes a tensionrod secured to one end of said string carrying arm.

5. The package binder, as set forth in claim 1, which includes acontainer receiving a plurality of string carrying cones and secured tosaid frame, and

said container having an opening for feeding the string from one of saidcones to said string carrying arm.

References Cited by the Examiner UNITED STATES PATENTS 658,206 9/1900Collins 27 750,574 1/1904 Bicket 100 989,020 4/1911 Ljunglo 100-271,946,506 2/1934 Swanson et a1. 74394 X 1,994,453 3/1935 Bunn 100-272,371,024 3/1945 Bunn 10027 2,775,140 12/1956 Loos 10028 X 2,782,709 2/1957 French et al 10027 2,987,163 6/1961 Eddison et al.

LOUIS O. MAASSEL, Primary Examiner.

WALTER A. SCHEEL, Examiner.

1. A PACKAGE BINDER COMPRISING A FRAME, A FIXED TABLE SECURED TO SAID FRAME, A TRAVELING TABLE DISPOSED ADJACENT TO BUT SPACED APART FROM SAID FIXED TABLE AND MOVABLY SECURED TO SAID FRAME, A STRING CARRYING ARM OPERATIVELY CONNECTED WITH SAID TRAVELING TABLE AND PIVOTALLY SECURED TO SAID FRAME IN ORDER TO PERMIT ROTATION RELATIVE TO SAID FRAME, A KNOT FORMING DEVICE OPERATIVELY CONNECTED WITH SAID STRING CARRYING ARM, A MAIN SHAFT AND A SECOND SHAFT OPERATIVELY CONNECTED WITH SAID MAIN SHAFT, MEANS FOR OPERATION OF SAID STRING CARRYING ARM FROM SAID MAIN SHAFT, SAID MEANS FOR OPERATION INCLUDING A CHANGE DIFFERENTIAL GEAR DEVICE OPERATIVELY CONNECTED WITH AND DRIVEN BY SAID MAIN SHAFT IN ORDER TO CONTROL THE ROTATION OF 